Triosphere is a Norwegian heavy metal band from Trondheim (Norway) created in 2004 by Ida Haukland (vocalist and bassist) and Marius Silver Bergesen (guitarist). Specifically, their style is power metal and progressive metal. Marius Bergesen is the composer of all instrumental parts while Ida Haukland is the composer of the vocal parts.

The band was originally formed as a trio consisting of Haukland, Silver and drummer Ørjan Aare Jørgensen. They released their first EP Deadly Decadence in 2005. After recording their first album Onwards released in 2006, they expanded into a quartet with the addition of second guitarist Tor Ole Byberg.
Later they released the albums The Road Less Travelled in 2010 and The Heart Of The Matter in 2014, both well received. Jørgensen left the band in March 2014 after recording his parts for The Heart Of The Matter and was replaced by Kenneth Tårneby in November.

They’ve toured with many heavy metal bands including W.A.S.P., Kamelot, Arch Enemy and Sonata Arctica.

More information about the band on their website.